Cutting-pliers



, CUTTING PLIBRS.

No. 276,417. Patented Apr.24, 1888.

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Wilnasum Inventor filler-nay ETERS PlwiwUlhagnphah Wilhillgton. D. C.

UNITED STATES PATENT OFFICE.

.TQHN' H. JENOKS, or WATERBURY, connnorrour,

CUTTING-PLIERS.

SPECIFICATION forming part of Letters Patent No. 276,417, dated April24, 1883. Application filed October 5, 1882. (No model.)

coincident-stoinsure their most perfect cutting action, and also so thatthe said cutters may be readily detached and replaced-as, for example,when dulled, defaced, or injured; and it comprises certain novelcombinations of parts whereby this object is effectually secured, thecutting-edges being very firmly retained in position when in use, andcapable of being readily started from their sockets by force properlyapplied.

Figure 1 is a side view of cutting-pliers fitted with side cuttersconstructed according to my said invention. Fig. 2 is a centrallongitudinaltransversesectional view thereof. Fig. 3 is a detailsectional view, on a larger scale, through one of the jaws andillustrating the manner in which the cutters are applied in place. Figs.4 and 5 are detail views, on a like scale, of the cutters. Fig. 6 is adetail view, on

I a like scale, showing one of the sockets which secure the cutters; andFig. 7 is adetail view, on a like scale, taken in a plane at rightangles to Fig. 6.

The opposite jaws A of the pliers are for nished at one side withsockets a, the socket in one jaw being opposite that in the other. Thejaws themselyes may be of any, ordinary or suitable construction, andtheir extremities may be formed into nipping-jaws b, when desired. Thejaws themselves may be operated by suitable handlesor othermeans, which,being well known in the construction of nippers, cutting-pliers, &c.,need not be here described. Each ofthe sockets amay be somewhat broaderat its front portion, 0', than at its back e. Furthermore, each of thesaid sockets has its inner end recessed in semi-dovetail form, as shownat g in Fig. 6, and its inner corners of rounded contour, as indicatedat-t in Fig. 1.

Furthermore, each socket, taken from end to the rear or inner side ofthe socket not only tends to hold the corresponding end of the cutteragainst any tendency to spring laterally outward, but also by actingupon the correspondingly-inclined extremities of the cutters serves toguide the same into the required positions and retain the two cutterswith their edges on the same plane with much less liability todisplacement than if reliance were placed wholly upon the dovetaillongitudinal section of thesocket. Furthermore, the rounded innercorners of the sockets are much less liable to chip off during theoperations of inserting or removing the cutters, and, moreover, bylessening the frictional surfaces, permit the said removal orinsertion,as the case -may be, with a materially less application of forcethanwould be the case if the corners were extended to sharp angles.

By inserting a suitable implement-as, for example, the blunt end of acold-chisel-in the recess a and bearin g against the shoulder I), eachcutter may be driven out of its socket to permit its replacement or itssubstitution by another. This removal is facilitated by the peculiarshape or conformation of the socket and its contained cutter,hereinbefore explained, which said conformation also insures to thecutter when in place veryfirm. retention in position and resistance tothe thrust brought upon it in the operation of cutting wire or likearticlesin the ordinary uses ofsuch implements.

'What Ifclaim as my invention is- 1. The combination of a cutter havingdovetail ends and dovetail inner or rear end and rounded corners withajaw, A, having a socket of corresponding form, all substantial] y asand for the purpose herein set forth.

In the outer surface of each cutter is an indentation, a, which pro-,vides a shoulder, b. The dovetail form of 2. The jaw of a.cutting-plier, constructed shouldered recess, a/{, in its outer surface,all with a, socket having dovetailed ends and resubstantially as and forthe purpose herein set 10 cessed at its inner side, as described, incomforth.

bination with a cutter B of corresponding 5 shape, substantially'as andfor the purpose r JOHN JENGKS' herein set forth. \Vitnesses:

3. A cutter, 13, having dovetail ends broad- JOHN W. WEBSTER,

est at its cutting-edge and constructed with a IRVING H. 00E.

